Mixed paint.



' UNITED STATES PATENT OFFICE.

HENRY C. PR ITCHARD, OI GOLFAX TOWNSHIP. MECOSTA COUNTY, MICHIGAN, ASSIGNOR OF ONE-HALF TO DOUGLAS ROBEN, 0F BIG RAPIDS, MICHIGAN.

MIXED PAINT. 3

.1 .ooo,a4a.

No Drawing.

'lb all 1117mm it may concern: l Be it known that T. Hnx'm' (l. PRI'ItI-IARD, a ('IilZtIi of the llmted States. residing m the'tou'nship of (olt'ax.' in the county off Ueeosta and State of Michigan. have in: vented new and useful Tmprovenu'nl's 1n speeifieat ion.

The 0l)j((l of my invention is to make a paint which will give a hard. lustrous and durable surt'aee. capableot withstanding the j imj 1 beat this over a. slow lire till the shellac stance suitable'lor the body of the paint.

smelting. 267

elements longer than' other paints n emu mou use; and which will therefore form a superior prote'etimt to wood. metal. briek,

oheapen paints, as it can be mauut'aetm'ed at a less cost than almost any other good paint; v

The chemicals ordinarily used as dricrs, and the acids used in' leads are injurious to the paint. 'lhis'inrention uses only a mini- 4 mum of such chemicals. I As one of the foundation ingredients I use the slag. dross or einders 't'rom iron smelt'ers. This is ground to a line powder. It is silicious 'in sulmtauee. andgives to l paint when applied. a certain brightness of g a uwaranee. and-makes it ot a hard. l'lint'y I l l l i i stone and eminent. Its use will also tend to i nature. \Vhen used alone as the body of the paint it makes the paint nearly transparent; for that 'reason 1' generally (one bine it. with white lead. zinc o-r'other sub- 'lhe hardness of the powdered slag makes it peeuliarly suitable for use in painting on brick, stone. cement and o'u'xlals it does not chalk otl as do lead paints.

Body of 7)m'nt.lill-verized' slag of iron lbs; white lead or oxid of zinc. 4-00 lbs.

D'qm'rl. portirm.---lloiled linseed oil. gals; "riee, 95 lbs; ater, 5 gals; gum shellac, 15 lbs.: water, 10 gals: potaslnfl lbs; rosin. 25 lbs.; gasolene. l0 gals. The said 25 lbs. 0F riee are boiled in the gal lons otwvateetill the substance. out of the rice. When the whole is. strained l have 30 gallonsol rice. liquid. To the. l0 gals. of water above mentioned I add said 1'5 lbs. of gum shellac and said 2 lbs. o'li"pot.ash.

Specification of Letters Patent.

Application filed December 2, 1910. Serial No. 595,289.

' Coloring matter is added to make any shade in evidence, with a'shellao solution.

Patented Aug. 15. 1911.,

is dissolved The rosin is dissolved in said 10 gallons of gasolene. I mix the rice liouid with the shellac liquid. I add theboiled linseed oil. (50 gals.) and the rosin-' zasolene solution. mixing all to ether over a slow fire.

The pulverized slag and lead or zinc are mixed together in any suitable-mixer; and then all the ingredients, powder and liquid, are ground together in a. paint mill to the consistency of liquid paint: making in this easesomethin; over 100 gallons ofpa'int.

that may be desired,

The riceliquid, in addition to being a .a'ood drier. is particularly valuable as a blender. combining the other elements to the best consistency, and securing a smoothness of application and an evenness of surface when the paint is dried. it; also addsa fine hard gloss and brightness to the painted surface; and with the actionof the other ingredients this luster is maintained for a remarkably long time.

It is the ordinary custom before painting to go over knots and places Where pitch is But with his paint this not necessary; the shellac and potash in the paint beingsufiieient'to neutralize the pitch.

The formula given above, together with the method of'combining the ingredients. is believed by me't'o produce the best results; nererthcle'ss T do not.li1uit,, myself to the particular ing'redients mentioned. nor to the exact proportions ot t h js'anie, uoc'tb the method described for lanuhiuing: them.

The pulverized slagjwith or without the. lad or zine. may be usedin combination \v'th lignite, oehcr, umber, clay, marl, or other substance or substancesin common use .tor'the body of paints and may be mixed with linseed oil, and any of the ordinary driers used. if the slag is used in greater pro 'iortion. the paint. is rendered more transparentz if the other body suhstancespre- 'don'liuate. the paint is made more opaque.

The rice liquid with a small quant-ity of potash. will eombine with-boiled linseed- .oil, and the combination may be used with or Without the shellac, water, rosin, andgasolene, or any of them, to mix with any of the dry or paste paints in ordinary use,

with or without the pulverized slag.

VVha't I claim as new, and Wish to secure by Letters Patent is as follows: A paint formed of pulverized slag from iron smelting, withwhite lead; with which 7 ire combined the liquid obtained from b0illng rice; shellac; potash; Water; rosin'; gas- 

